Automatic gate



Aug. 18, 1931. E. WEIDLEIN ,81

AUTOMATIC GATE I I Filed Dec. 1, 1928 2 Sheets-Sheet. 1

: a g I '1 I 1 I i l i i I l I I I l 1 INVENTOR. Edwardilidlein,

I ATO E.

INVENTOR. m,

,0, #0 An l-l .llllllll l l l IIIIJL 4 I E. WEIDLEIN AUTOMATIC GATEFiled Dec. 1.

Aug. 18, 1931.

1928 2 Sheets-Sheet 2 llllltwm llluu Edward Widle Patented Aug. 18, 1931unites ATEli l FFIQE EDWARD WEIDLEIN, F AUGUSTA, KANSAS AUTOMATIC GATEThis invention relates to an automatic gate particularly adapted for usein connection with motor vehicle traiiic but which, with slight changesin the approach thereto, may

1 be adapted for use in connection with other types of trafiic.

The primary object of the invention is to provide, in a manner ashereinafter set forth, a gate of the above mentioned class which isadapted to be opened by the approach of a vehicle and which is furtheradapted to close upon the passage of the vehicle therethrough.

A further object of the invention is to pro vide a gate operable asaforesaid, which is fulcrumed on an upright support and the parts ofwhich fold together when the gate is swungto open position.

With the foregoing and other objects in View, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more particularly de scribed, and as illustrated in theaccompanying drawings wherein is shown a preferred embodiment of theinvention, but it is to be understood that such drawings and descriptionare to be taken as illustrative and that the invention is intended to belimited only by the scope of the claim hereunto appended.

In the accompanying drawings in which like numerals are employed todesignate like parts throughout the same Figure 1 is an elevation of anautomatic gate constructed in accordance with this invention, showingthe same in closed position.

Figure 2 is a top plan thereof.

Figure 3 is an elevation thereof, shown in open position in full linesand shown in partially open position in dotted lines.

Referring to the drawings in detail. the numeral 1 designates a roadwayupon one side of which is disposed a pair of closely arranged, spaced,upright supporting posts 2 and upon the opposite side of which is dis'45" posed an upright guide post 3. The guide post 3 is formed in itsinner face with a vertical groove 1 which is open at its upper end andwhich opposes the space between the supporting posts 2.

5o Adapted to span the roadway between the supporting posts 2 and guidepost 3 is a gate indicated generally by the numeral 5 and consisting ofa pair of horizontal members 6 and 7, a pair of vertical members 8pivotally connecting the members 6 and 7 and a cross member '9 pivotallyconnecting the v rtical members 8 and extending in parallel relation tothe horizontal members 6 and 7. The horizontal member 6 is of'materiallygreater length than the member 7 and one end thereof projects laterallybe tween and beyond the supporting posts 2. The member 6 is pivotallysecured to the posts 2 as indicated at 10, such pivotal connectionproviding a fulcrum for the gate 5. The vertical members 8 are spacedfrom the posts 2 and 3 and with the gate in closed position, the outerends 11 of the horizontal members 6 and '7 are disposed within thegroove t of the guide post 3. The inner end 12 of the horizontal member7 terminates adjacent the supporting posts 2, and the ends of the crossmember 9 are substantially flush with the outer faces of the verticalmembers 8.

Embedded inthe roadway 1 and extending transversely thereof is a leverbox 13 within which is pivoted one end of a lever 14. The free end ofthe lever 14 projects between and beyond the supporting posts 2 and ispivotally connected to the lower end of a link 15, the upper end ofwhich is pivotally connected, as indicated at 16, to the projecting endportion of the horizontal member 6. The link 15 is of appropriate lengthto normally maintain the lever 14c at an incline and the pivot point 16is spaced from the supporting posts 2 a slightly greater distance thanthe pivotal connection between the link 15 and lever 1 1 so that thelink 15 is normally slightly inclined from top to bottom towards the 90supporting posts 2.

Embedded in the roadway 1 and extending longitudinally thereof is atread box 17 which is of less depth than the lever box 13 and withinwhich is pivoted, as indicated at 18, 95 one end of a tread member 19,the free end of which extends over and. beyond the lever 1e. Upon thedepression of the tread member 19, the lever 14 is forced downwardly toa horizontal position which exerts a downward pull on link 15. Thedownward pull on the link causes the horizontal member 6 to be pivotedabout its pin 10, thereby swinging the outer end 11 in a vertical arc.Due to the loose pivotal connection between the horizontal members 6 and7 and vertical members 8 and also between the cross member 9 and thevertical members 8, the members 8 retain their vertical position duringthe swinging movement of the horizontal member 6, where- I by themembers 6, 7, 8 and 9 assume a folded position as indicated in Figure 3.

Upon the removal of the pressure upon the tread member 19, the weight ofthe gate 5 causes the same to fall by gravity to its normal closureposition. A counterbalance is suspended by means of achain 21 from thehorizontal member 6 adjacent the projecting end 22 of the latter, thepurpose of which is to resist the latter portion of the closing movementof the gate 5. The chain 21 is of appropriate length to permit thecounterbalance 20 to rest on the ground when the gate is in openposition and the counterbalance 20 is of appropriate weight to permitthe gate 5 to descend slowly to its closure position. The counterbalance20 also assists in the first portion of the opening operation of thegate when a pressure is applied to the tread member 19.

The tread member 19 is adapted to be actuated by the passage of thewheel of a vehicle thereover, but the gate may be raised to openposition by hand if desired. A hook 23 is secured to the upper end ofone of the supporting posts 2 for engagement with an eye 24: formed onthe horizontal member 6, by means of which the gate may be latched inopen position if desired.

It is thought that the many advantages of an automatic gate inaccordance with this invention will be readily apparent, and althoughthe preferred embodiment of the invention is as illustrated anddescribed, yet it is to be understood that various changes in thedetails of construction may be made which fall within the scope of theinvention as defined in the appended claim.

hat I claim is In combination, an upwardly tiltable movable gate bodyincluding top and bottom members. the former being of greater length andprojecting beyond the latter, a vertical support positioned adjacent oneend of said bottom member, means for pivotally connecting said topmember at a point between its vertical median and one end thereof withinsaid support in proximity to the top of the latter, a weight, flexiblemeans for suspending the weight, said means attached to said top memberin proximity to the said end thereof, a vertical guide for receiving theother ends of said members, a normally inclined, horizontally disposeddepressible lever extending through the lower portion of and projectingin opposite directions from said support, means for pivotally anchoringone of the ends of said lever in a roadbed, a link having one endpivotally connected to said top member between the pivot for the latterand the point of attachment of said flexible means and having its otherend pivotally connected to the other end of said lever, and a depressingelement for, directly engaging With and disposed transversely of saidlever whereby on the depression of the latter by the said element thegate body will be tilted upwardly and automatically fold.

In testimony whereof, I affix my signature hereto.

EDWARD WEIDLEIN.

